Defects in semiconductors, icds-19 : proceedings of the 19th International Conference on Defects in Semiconductors, Aveiro, Portugal, July 1997. Part2 pp.691-696, 1997. Zurich, Switzerland. Trans Tech Publications
Silicon carbide, III-nitrides and related materials, ICSCIII-N'97 : proceedings of the International Conference on Silicon Carbide, III-Nitrides and Related Materials, Stockholm, Sweden, September 1997. Part1 pp.545-548, 1998. Zuerich, Switzerland. Trans Tech Publications